I am at the point where Nina is in Da Vinci's workshop looking for the cylinder. There are scales on the wall and,according to the WT, I should click on The chisel, left of the scales. I can't find the chisel. I hit the spacebar and the chisel is nowhere to be found in any of the areas the are highlighted.I have also clicked all over the place trying to find it. Help please!

Marian, I looked at your screenshot and have moved the cursor over every inch and there isn't a chisel. I see an oil lamp, vehicle, left arm of scales but no chisel. Strange. Could there be a glitch in my game?

I wish I knew for sure; that is indeed very strange. I haven't played this game so I am speaking out of ignorance, but unless there is something else you need to do in the game in order to "trigger" the appearance of the chisel (and I have absolutely no idea if this is the case), then it certainly sounds like it could be a glitch.

Marian, I haven't been able to get back to the game because of my work schedule and I'm not sure that I know where the center of the complex is but I am just getting ready to start playing it. I will give it a try. This part of the game reminds me a little bit of some of the Nancy Drew games I have played.